Pocket knife



FIG. 1 is a left side elevation view thereof of a pocket knife, showingmy new design;

FIG. 2 is a right side elevation view of the pocket knife;

FIG. 3 is a front elevation view of the pocket knife;

FIG. 4 is a rear elevation view of the pocket knife;

FIG. 5 is a top plan view of the pocket knife; and,

FIG. 6 is a bottom plan view of the pocket knife.

The broken lines depict portions of the pocket knife in which the designis embodied that are not considered part of the claimed design.

CLAIM The ornamental design for a pocket knife, as shown and described.